The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 1992
Filed:
Sep. 18, 1989
Applicant:
Inventors:
Shuji Yoshizawa, Tokyo, JP;
Tatsuya Ikezue, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ; G03G / ;
U.S. Cl.
CPC ...
430 65 ; 430 57 ;
Abstract
An electrophotographic photoreceptor is disclosed which is constituted by a conductive substrate, a barrier layer formed thereon, and a photoconductive layer, formed on the barrier layer, for generating photocarriers upon radiation of light. A portion of the barrier layer is formed by alternately stacking first thin films consisting of amorphous or microcrystalline silicon containing an element which controls a conductivity type and second thin films, these having a band gap wider than that of the first thin film. A multilayered structure made up of the first and second thin films has a superlattice structure.